Portion of a battery for a portable electronic apparatus



FIG. 1 is a top, right, rear perspective view showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top plan view thereof.

I claim the ornamental design for a portion of a battery for a portableelectronic apparatus, as shown and described.